They met up in Athens.
Corinth
1
Paul and Silas were later joined by Timothy on their missionary journey.
1st Missionary Journey - Barnabas. 2nd Missionary Journey - Silas. 3rd Missionary Journey - mostly alone, but assisted at various times by Luke, Timothy or Titus.
Timotheus
timothy
In the book of Acts it is said Paul went on his third missionary journey along with his companion who were his co workers they were young men called Silas and Barnabas.
Silas (Acts 15:40) Timothy was added at Lystra Acts 16:1-3. Luke is the recognized author of Acts and has references later in chapter 16 that use the pronoun "we" so he was apparently with them on this trip.
It depends upon the journeys. the short answer is that over all the journeys Paul was accompanied by Peter, Barnabas, Timothy, Silas, John Mark (author of the Gospel of Mark) and Luke amongst others.
In the book of Acts it is said Paul went on his third missionary journey along with his companion who were his co workers they were young men called Silas and Barnabas.
ROMAN
Silas was Pauls' companion on this journey as well as Timothy. Aquila and Priscilla went with him as far as Ephesus.
Initially it was Paul and Barnabas and Silas, but Barnabas wanted to bring John Mark, but Paul said no because John Mark had left them earlier. So Barnabas left with John Mark and Paul and Silas continued on. Timothy joins them later and Luke is also there.
The woman you have in mind is probably Lydia, a "seller of purple from the city of Thyatira" (Acts 16:14). She and her household were baptized in the town of Philippi on Paul's second missionary journey, while he was accompanied by Silas. (You have to look back to Acts 15:40to see that Silas was among Paul's company at the time.)